Journals
2026 EN
Mondal Samir Kumar · Rath Tarini Prasad · Tomar Shiva Kumar
+4 more
ABSTRACT A novel series of quinazolinone‐based 1,2,3‐triazole hybrid compounds ( 6a – m ) were designed and synthesized through copper‐catalyzed 1,3‐dipolar cycloaddition reaction, utilizing terminal alkynes attached to quinazolinone and various azide derivatives. The in silico ADMET predictions indicated favorable pharmacokinetic and toxicity profiles, while molecular docking studies revealed binding interactions consistent with the experimental biological outcomes. However cytotoxic effects against MCF7 and MDA‐MB‐231 breast cancer cells showed that compounds 6a , 6e , 6i , and 6j exhibited minimal growth suppression activity and is relatively weaker than the anticancer drug 5‐FU. Additionally, photophysical studies of compound 6b demonstrated blue fluorescence in different solvents, highlighting its potential for further investigation in photochemical applications.
Journals
2026 EN
Mondal Somrita · Ellis Shawna
ABSTRACT Among the third‐generation solar light harvesting devices, dye‐sensitized solar cells (DSSCs) were the most studied solar cell device model in the past decade. To date, DSSCs have achieved maximum power conversion efficiency (PCE) of 15.2%. However, the low molar extinction coefficient and absorptivity over a narrow range of solar spectrum limits their usage for practical purpose. After DSSCs, quantum dot sensitized solar cells (QDSSCs) are the most studied candidates in this decade. A maximum PCE of 18.1% has been reported for QDSSCs so far. Nevertheless, QDSSCs still suffer from the drawback of non‐scalable synthesis of QDs, long term instability of perovskite QDs and usage of toxic materials like Cd, Se, and Pb for fabrication of QD sensitized light harvesting devices. The ideal approach for efficient light harvesting is to combine quantum dots and dyes as sensitizers to extract their fullest benefits while eliminating their limitations. In this review, we discuss the fabrication and characterization of dye‐QD co‐sensitized devices. Further, we compare the PCE and other properties of co‐sensitized devices. Finally, we discuss the future research direction of these co‐sensitized devices, which can lead to fabrication of stable and efficient photovoltaic devices for practical applications.
Journals
2026 EN
Khusi Agrawal · Ardra Murali · Imran Predhanekar Mohamed
+1 more
ABSTRACT The donor‐acceptor system is vital, with benzimidazole emerging as a notable acceptor for memory devices. In this work, a new benzimidazole‐linked benzothiophene was synthesized via Pd‐catalyzed Suzuki cross‐coupling, featuring D‐A‐D and D‐A‐A compounds. UV–vis analysis indicated strong intramolecular interactions and a band gap of 3.12–3.25 eV, suggesting advantageous charge transport properties for memory applications. SEM and thin‐film XRD confirmed improved molecular ordering, substrate coverage, and high crystallinity in the thin films. Non‐volatile binary WORM memory behavior was exhibited by the synthesized compounds. The methoxy‐substituted compound showed effective memory performance with a low threshold voltage (−1.08 V) and an ON/OFF ratio of 10 3 , while the dibenzofuran‐substituted compound exhibited a higher ON/OFF ratio of 10 4 and a threshold voltage of −2.62 V. D‐A‐based compounds with varying substituents demonstrated favorable retention time (10 3 s) and endurance up to 100 cycles. The observed resistive switching mechanism results from both charge trapping and charge transfer effects. This study underscores the significant impact of substituent alterations in D‐A molecules on molecular arrangement, electron trap depth, and thin film morphology, and all of which significantly influence memory performance in organic devices.
Journals
2026 EN
Bedaiwi Sara Mohammed · Manickavasakam Karnan · Hardianto Yuda Prima
+6 more
Abstract The growing demand for flexible, sustainable, and multifunctional energy storage systems has spurred interest in low‐cost, biomass‐derived materials for next‐generation supercapacitors (SCs). This study presents a sustainable organic route to fabricate activated carbon (AC) from jute sticks and a fluoropolymer membrane based on PVDF‐HFP, targeting dual applications in piezoelectric and aqueous asymmetric SC configurations. In the self‐charging system, jute‐derived AC is employed as both electrodes, while the PVDF‐HFP membrane functions simultaneously as a separator and a piezoelectric energy harvester. For the asymmetric configuration, the AC serves as the negative electrode, paired with a Ni‐based metal–organic framework (Ni‐MOF) as the positive electrode, demonstrating the versatility of the biomass‐derived carbon in hybrid energy storage systems. The piezoelectric SC achieves an areal capacitance of 72 mF/cm 2 and effectively converts mechanical energy into electrical energy under applied pressure. Meanwhile, the asymmetric device delivers an areal capacitance of 117 mF/cm 2 , showcasing enhanced charge storage and energy delivery. This dual‐application approach highlights the multifunctional potential of jute‐derived carbon and fluoropolymer membranes, offering a scalable and environment‐friendly pathway for the development of autonomous, self‐powered, and portable electronic systems.
Journals
2026 EN
Puzanov Andrey I. · Zakusilo Dmitriy N. · Ipatova Elena V.
+1 more
ABSTRACT This mini review describes recent achievements in the production and chemical transformations of muconic acid (hexa‐2,4‐dienedioic acid, HO 2 CCH═CHCH═CHCO 2 H). Muconic acid may be obtained from renewable lignocellulosic materials, and it is considered as a bio‐based platform molecule. This acid has a great practical value due to its hydrogenation into adipic acid, which is used for nylon production. Muconic acid and its derivatives take part in many important and useful synthetic transformations such as Diels‐Alder reactions, isomerization, lactonization, polymerization, polycondensation, and others. However, up to the moment, muconic acid is not yet widely used in the fine organic synthesis. This review is focused on preparation, reactions, and on some novel applications of muconic acid and its derivatives in organic synthesis. The aim of this review is to attract attention to muconic acid, which has a high potential to be a valuable precursor for preparation of novel compounds and materials.
Journals
2026 EN
Kale Nandini B. · Galla Mary Sravani · Shankaraiah Nagula
ABSTRACT Functionalized alkynes have emerged as pivotal entities in modern synthetic chemistry and also exhibit as versatile building blocks toward the construction of diverse molecular frameworks. This review emphasizes a comprehensive overview of recent advancements in the applications of functionalized alkynes, such as ynals, ynamides, alkynols, diynes, and miscellaneous alkynes in annulation reactions. The review also discussed the utility of functionalized alkynes from traditional organic synthesis to innovative metal‐mediated transformations, late‐stage functionalization of complex molecules, medicinal chemistry, including natural products and pharmaceuticals.
Journals
2026 EN
Roy Pijush Kanti · Hitomi Yutaka
ABSTRACT N‐hydroxyphthalimide (NHPI) has emerged as a versatile organocatalyst for the selective oxidation and functionalization of C(sp 3 )–H bonds via the phthalimide N‐oxyl (PINO) radical. In recent years, the NHPI–PINO platform has advanced significantly, driven by three key developments: photochemical activation, electrochemical transformation, and catalyst immobilization. Visible‐light‐driven systems and semiconductor‐assisted photocatalysis have expanded the reaction scope and enabled sustainable transformations under mild conditions. Electrochemical approaches have provided scalable and energy‐efficient routes for hydrogen atom transfer and radical functionalization, while cooperative electrocatalysis has further enhanced both activity and selectivity. Immobilizing NHPI on porous frameworks and hybrid supports has bridged the gap between homogeneous and heterogeneous catalysis, improving stability, recyclability, and compatibility with continuous‐flow systems. This review summarizes mechanistic insights and key breakthroughs from 2022 onward, highlighting the integration of advanced materials, operando spectroscopy, and computational modeling. Current challenges and future opportunities are also discussed, with a focus on hybrid catalytic platforms and the expansion of applications in synthetic, industrial, and sustainable chemistry.
Journals
2026 EN
Zhou CiYi · Huang YuehLing · Lee Xsingyi
+1 more
ABSTRACT A novel Boc 2 O‐promoted cascade transformation has been developed for the efficient one‐step synthesis of C5 sulfur‐substituted oxazolidin‐2‐ones from thioepoxy amines. This method enables simultaneous oxazolidinone ring construction and side‐chain sulfur incorporation via intramolecular cyclization, significantly improving synthetic step economy. Mechanistic studies, including NMR and x‐ray analysis, suggest a 5‐ exo ‐tet cyclization pathway consistent with Baldwin's rules. This strategy expands the synthetic utility of oxazolidinone scaffolds, offering access to medicinally relevant sulfur‐containing analogues with potential pharmacological applications.
Journals
2026 EN
Agrawal Richa · Koli Mrunesh · Choudhary Manoj K.
+3 more
ABSTRACT Electron transfer (ET) dyads comprising electron‐donating as well as electron‐accepting chromophores are highly useful in various opto‐electronic applications. Thus, design and synthesis of efficient ET dyads is a highly demanding area of research. Here, we designed three dyads by connecting electron donating indolocarbazole (ICZ) moiety with three different electron accepting diketopyrrolopyrrole (DPP) moieties. A facile methodology for the synthesis of these ICZ‐DPP dyads was developed using the Suzuki–Miyaura cross‐coupling reaction of boronated‐ICZ and bromo‐DPPs. Detailed characterizations of the dyads were done using NMR, optical spectroscopy, and mass spectrometry. All the dyads exhibited broad and strong visible light absorption and displayed interesting solvent‐dependent photophysical properties. Interestingly, significant quenching of fluorescence in polar solvents due to non‐radiative deactivation of excited states was also observed for all the dyads. Femtosecond transient absorption measurements were done, which showed ultrafast electron transfer from ICZ donor to DPP acceptor, leading to charge separated state in polar solvents. This study showed that ICZ‐DPP dyads with broad visible light absorption and efficient photoinduced charge separation could be useful for various applications, including organo‐electronics, photocatalysis, sensing/imaging, and so on.
Journals
2026 EN
Joshi Yatharth · Singh Manorama · Rai Ankita
+1 more
ABSTRACT The organic compounds containing guanidine moieties are known to show several applications in the field of medicines, catalysts, and polymers, etc. The use of guanidines has been explored by researchers all over the world. Guanidines serve as an important tool in the synthesis of heterocycles, which serve as therapeutic agents and also show a wide array of applications. Due to their cost efficiency, atom economy, and eco‐friendliness, Multicomponent reactions (MCRs) have drawn the attention of researchers and scientists all over the world. This review highlights the applications of guanidines as a reagent as well as a catalyst in synthesizing various heterocyclic scaffolds via one‐pot Multicomponent reactions.